While the Internet has been bristling with anger over the Cyber Intelligence Sharing and Protection Act, the Internet industry has been either silent or quietly supportive of the controversial bill. With one exception.

Late Tuesday, Mozilla's Privacy and Public Policy lead sent me the following statement:

While we wholeheartedly support a more secure Internet, CISPA has a broad and alarming reach that goes far beyond Internet security. The bill infringes on our privacy, includes vague definitions of cybersecurity, and grants immunities to companies and government that are too broad around information misuse. We hope the Senate takes the time to fully and openly consider these issues with stakeholder input before moving forward with this legislation.

CISPA was introduced to the House in November with the intention of allowing more sharing of cybersecurity threat information between the private sector and the government, but has since been criticized for a provision that would also allow firms to share users' private data with agencies like the National Security Agency or the Department of Homeland security without regard for any previous privacy laws.

Just before its passage last Thursday, the House added new amendments broadening that sharing to not just information about cyberattacks but also any case that involves computer "crime," exploitation of minors or even "the protection of individuals from the danger of death or serious bodily harm."

But despite the outcry over the privacy violations the revamped bill might allow and even a threatened veto from the White House, tech firms have largely stood behind it--CISPA's official supporters include Facebook, Microsoft, IBM, Intel, Oracle and Symantec among others--carriers including AT&T and Verizon have signed on, too. Despite reports that Microsoft had backed off its support for the bill citing privacy, a Microsoft spokesperson Monday told reporters that the company's supportive position on CISPA remains "unchanged."

Mozilla didn't offer any further comment on its decision to break with that collection of CISPA supporters. But it wouldn't be the first time Mozilla has taken an outspoken role against controversial legislation: In January's protests of the Stop Online Piracy Act, Mozilla joined Reddit and Wikipedia in a "blackout" of its sites, replacing their content with information about SOPA's violation of free speech rights.

Google now remains perhaps the only major Web firm that has yet to take a stance on CISPA. In a statement, a Google spokesperson tells me that "We think this is an important issue and we're watching the process closely but we haven't taken a formal position on any specific legislation."

Debate over CISPA now moves to the Senate, where it must be squared against one of two very different bills proposed by Senators John McCain in the first case and Joe Lieberman and Susan Collins in the other. In the melee to come, Google, like its smaller Mountain View neighbor Mozilla, will likely have to choose a side.